x+1/x=3 , calculate x4+1/x4
Answers
Answered by
0
given
X+1/X = 3
on squaring both sides
(X+1/X) ² = 3²
x²+1/x² + 2x*1/X = 9
x²+1/x² = 7
again squaring both sides
(x²+1/x²)² = 7²
x⁴+1/x⁴ +2(x²/x² )= 49
x⁴+1/x⁴ = 47
thus x⁴+1/x⁴ = 47
X+1/X = 3
on squaring both sides
(X+1/X) ² = 3²
x²+1/x² + 2x*1/X = 9
x²+1/x² = 7
again squaring both sides
(x²+1/x²)² = 7²
x⁴+1/x⁴ +2(x²/x² )= 49
x⁴+1/x⁴ = 47
thus x⁴+1/x⁴ = 47
Similar questions